Door stop



FIG. 1 shows a three-quarter perspective view of a door stop;

FIG. 2 shows an upper perspective view of a door;

FIG. 3 shows a side view of a door stop in an open position;

FIG. 4 shows another side view of a door stop in an open position;

FIG. 5 shows an overhead perspective view of a door stop in a closed position; and,

FIG. 6 shows an underside perspective view of a door stop in a closed position. 

CLAIM The ornamental design for a door stop, as shown and described. 